AS400 (IBM i) System Administrator

AS400 (IBM i) System Administrator

Role Descriptions:

Role Summary

The AS400 (IBM i iSeries) System Administrator is responsible for the administration, monitoring, maintenance, security, patching, upgrades, and operational support of IBM i environments. The role ensures platform stability, performance, availability, and compliance while managing batch scheduling operations using ROBOT Scheduler and supporting business-critical production workloads.

1. IBM i AS400 System Administration

• Administer and maintain IBM i (AS400/iSeries) environments across Production, DR, QA, and Development systems.
• Perform daily health checks, system monitoring, and performance tuning.
• Manage user profiles, authorities, object permissions, and security controls.
• Monitor system resources, storage utilization, and capacity planning.
• Perform IPL activities and system startup/shutdown operations.
• Troubleshoot operating system, subsystem, and job-related issues.
• Ensure adherence to ITIL-based Incident, Problem, and Change Management processes.

2. OS Management, PTFs, and Upgrades

• Plan and execute IBM i OS upgrades and technology refresh activities.
• Manage PTF installation, cumulative packages, HIPER PTFs, and security patches.
• Conduct pre-upgrade assessments and compatibility checks with applications and third-party tools.
• Coordinate maintenance windows and upgrade activities with business stakeholders.
• Perform validation, testing, rollback planning, and post-upgrade verification.
• Document upgrade procedures, risks, and remediation activities.
• Support firmware updates and Power Systems infrastructure maintenance.

3. Backup, Recovery Disaster Recovery

• Administer BRMS (Backup Recovery and Media Services).
• Execute scheduled and on-demand backups and restore operations.
• Manage virtual tape and media lifecycle.
• Perform recovery testing and DR drill activities.
• Support High Availability solutions such as MIMIX, PowerHA, iCluster, or equivalent.
• Participate in failover and failback exercises and DR readiness reviews.

4. ROBOT Scheduler Administration

• Configure, administer, and maintain ROBOT Scheduler environments.
• Create, modify, and manage batch jobs, calendars, dependencies, and workflows.
• Monitor critical business batch schedules and production job streams.
• Manage cross-system and cross-LPAR job dependencies.
• Troubleshoot failed, delayed, long-running, and abnormally terminated jobs.
• Perform job reruns, schedule modifications, and recovery activities.
• Support month-end, quarter-end, and year-end business processing schedules.
• Generate scheduler reports, audit information, and operational metrics.
• Coordinate with application teams for new job implementation and schedule changes.

5. Production Control Batch Operations

• Monitor production batch workloads and job queues.
• Manage subsystems, message queues, output queues, and spool files.
• Analyze performance bottlenecks and optimize batch execution windows.
• Support ad-hoc, scheduled, and on-demand production

Essential Skills:

The AS400 (IBM i iSeries) System Administrator is responsible for the administration, monitoring, maintenance, security, patching, upgrades, and operational support of IBM i environments. The role ensures platform stability, performance, availability, and compliance while managing batch scheduling operations using ROBOT Scheduler and supporting business-critical production workloads.

1. IBM i AS400 System Administration

• Administer and maintain IBM i (AS400/iSeries) environments across Production, DR, QA, and Development systems.
• Perform daily health checks, system monitoring, and performance tuning.
• Manage user profiles, authorities, object permissions, and security controls.
• Monitor system resources, storage utilization, and capacity planning.
• Perform IPL activities and system startup/shutdown operations.
• Troubleshoot operating system, subsystem, and job-related issues.
• Ensure adherence to ITIL-based Incident, Problem, and Change Management processes.

2. OS Management, PTFs, and Upgrades

• Plan and execute IBM i OS upgrades and technology refresh activities.